/*
 * Copyright 2011 The Rusted Roof, LLC.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package org.proteusframework.platformservice.persistence.util;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;

/**
 * @author Tacoma Four
 */
public final class BeanUtil
{
    private BeanUtil()
    {

    }

    /**
     * Returns a PropertyDescriptor[] for the given Class.
     *
     * @param messageBeanClass The Class to retrieve PropertyDescriptors for.
     * @return A PropertyDescriptor[] describing the Class, or null if the bean couldn't be introspected.
     */
    public static PropertyDescriptor[] propertyDescriptors(Class<?> messageBeanClass)
    {
        PropertyDescriptor[] descriptors = null;

        BeanInfo beanInfo;
        try
        {
            beanInfo = Introspector.getBeanInfo(messageBeanClass);
            descriptors = beanInfo.getPropertyDescriptors();
        } catch (IntrospectionException e)
        {
            throw new IllegalArgumentException("Unable to introspect message bean " + messageBeanClass.getCanonicalName());
        }

        return descriptors;
    }
}
